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OpenCloudOS-Kernel/drivers/gpu/drm/sun4i/sun4i_crtc.h

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drm: Add Allwinner A10 Display Engine support The Allwinner A10 and subsequent SoCs share the same display pipeline, with variations in the number of controllers (1 or 2), or the presence or not of some output (HDMI, TV, VGA) or not. Add a driver with a limited set of features for now, and we will hopefully support all of them eventually Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-10-29 16:36:23 +08:00
/*
* Copyright (C) 2015 Free Electrons
* Copyright (C) 2015 NextThing Co
*
* Maxime Ripard <maxime.ripard@free-electrons.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*/
#ifndef _SUN4I_CRTC_H_
#define _SUN4I_CRTC_H_
struct sun4i_crtc {
struct drm_crtc crtc;
struct drm_pending_vblank_event *event;
drm/sun4i: abstract a engine type As we are going to add support for the Allwinner DE2 engine in sun4i-drm driver, we will finally have two types of display engines -- the DE1 backend and the DE2 mixer. They both do some display blending and feed graphics data to TCON, and is part of the "Display Engine" called by Allwinner, so I choose to call them both "engine" here. Abstract the engine type to a new struct with an ops struct, which contains functions that should be called outside the engine-specified code (in TCON, CRTC or TV Encoder code). In order to preserve bisectability, we also switch the backend and layer code in its own module. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-17 22:47:17 +08:00
struct sunxi_engine *engine;
drm/sun4i: Add backend and tcon pointers to sun4i_crtc sun4i_crtc controls the backend and tcon hardware blocks of the display pipeline. Instead of doing so through the master drm structure, leave pointers to the corresponding backend and tcon in itself. Also drop the drm_device pointer, since it is no longer needed. The next step forward would be to pass the pointers in through sun4i_crtc_init as parameters. This would make it easier to support multiple display pipelines layer on. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-02-23 16:05:43 +08:00
struct sun4i_tcon *tcon;
drm: Add Allwinner A10 Display Engine support The Allwinner A10 and subsequent SoCs share the same display pipeline, with variations in the number of controllers (1 or 2), or the presence or not of some output (HDMI, TV, VGA) or not. Add a driver with a limited set of features for now, and we will hopefully support all of them eventually Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-10-29 16:36:23 +08:00
};
static inline struct sun4i_crtc *drm_crtc_to_sun4i_crtc(struct drm_crtc *crtc)
{
return container_of(crtc, struct sun4i_crtc, crtc);
}
drm/sun4i: Pass pointers for associated backend and tcon into crtc init sun4i_crtc controls the backend and tcon hardware blocks of the display pipeline. Pass pointers to the underlying devices into the crtc init function, instead of trying to fetch them from the drm_device structure. This avoids the headache of trying to figure out which devices the crtc is actually associated with. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-09 18:05:28 +08:00
struct sun4i_crtc *sun4i_crtc_init(struct drm_device *drm,
drm/sun4i: abstract a engine type As we are going to add support for the Allwinner DE2 engine in sun4i-drm driver, we will finally have two types of display engines -- the DE1 backend and the DE2 mixer. They both do some display blending and feed graphics data to TCON, and is part of the "Display Engine" called by Allwinner, so I choose to call them both "engine" here. Abstract the engine type to a new struct with an ops struct, which contains functions that should be called outside the engine-specified code (in TCON, CRTC or TV Encoder code). In order to preserve bisectability, we also switch the backend and layer code in its own module. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-05-17 22:47:17 +08:00
struct sunxi_engine *engine,
drm/sun4i: Pass pointers for associated backend and tcon into crtc init sun4i_crtc controls the backend and tcon hardware blocks of the display pipeline. Pass pointers to the underlying devices into the crtc init function, instead of trying to fetch them from the drm_device structure. This avoids the headache of trying to figure out which devices the crtc is actually associated with. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-03-09 18:05:28 +08:00
struct sun4i_tcon *tcon);
drm: Add Allwinner A10 Display Engine support The Allwinner A10 and subsequent SoCs share the same display pipeline, with variations in the number of controllers (1 or 2), or the presence or not of some output (HDMI, TV, VGA) or not. Add a driver with a limited set of features for now, and we will hopefully support all of them eventually Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-10-29 16:36:23 +08:00
#endif /* _SUN4I_CRTC_H_ */